A passive mechanical screwing device

Abstract

The invention provides a passive mechanical screwing device, which belongs to the field of mechanical technology, and includes two parallel pressure plates, a ratchet transmission unit, a planetary gear acceleration unit, two sets of elastic connecting rod units, a screwing head; the ratchet transmission unit and The planetary gear acceleration unit is located between the two pressure plates, and the planetary gear acceleration unit is coaxially connected with the ratchet transmission unit through a shaft coupling. The elastic link unit includes a multi-link assembly and an elastic assembly. The multi-link assembly is rotatably connected between the ratchet transmission unit and the planetary gear acceleration unit, and two sets of multi-link assemblies are respectively rotatably connected to the corresponding side of the pressure plate; The top is detachably connected to the planetary gear acceleration unit; when the screwing operation is applied, the clamping force is applied to the pressure plate, and the planetary gear acceleration unit is driven by the ratchet transmission unit to accelerate the rotation, so that the screw top rotates. The invention converts the radial translational motion applied to the pressure plate by external force-applying equipment such as a manipulator into the rotational motion of screwing the cape, which is simple and convenient to operate and saves time and effort.

Description

technical field [0001] The invention belongs to the technical field of machinery, and in particular relates to a passive mechanical screwing device. Background technique [0002] Tele-operated manipulators are widely used in military, marine, aerospace and other fields, and it is a common requirement for tele-operated manipulators to perform screwing operations on targets. At present, there are still some deficiencies in the screwing operation performed by the teleoperated manipulator: on the one hand, in the working environment where manpower is inaccessible, the teleoperated manipulator has the screwing ability by replacing the end effector, and the repetitive disassembly and assembly operations are time-consuming and complicated; On the one hand, since the screwing operation requires high coaxiality, and there is often a large error in the remote operation, it is difficult for conventional tools to ensure the operation accuracy, and improper operation may even cause equip...

AI Technical Summary

Problems solved by technology

At present, there are still deficiencies in the screwing operation performed by the remote operation manipulator: on the one hand, in the working environment where manpower is not accessible, the remote operation manipulator has the screwing ability by replacing the end effector, and the repeated disassembly and assembly operations are time-consuming and complicated; on the other hand On the one hand, because the screwing operation requires high coaxiality, and the remote operation often has large errors, it is difficult to guarantee the operation accuracy of conventional tools, and improper operation may even cause equipment damage

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